This is a file from the Wikimedia Commons. The description on its description page there is copied below.
Map showing major volcanoes of the Philippines
http://vulcan.wr.usgs.gov/Imgs/Gif/Philippines/Maps/map_philippines_volcanoes.gif on http://vulcan.wr.usgs.gov/Volcanoes/Philippines/Maps/map_philippines_volcanoes.html
1999
See bottom edge of the map.
See #Licensing.
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